Home / 38,376.81-57,581.91-13,434.75

Finding the Fourth Proportional to 38,376.81, 57,581.91 and 13,434.75

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Solution

The fourth proportional to 38,376.81, 57,581.91 and 13,434.75 is: 20,157.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,376.81 : 57,581.91 = 13,434.75 : x
  2. Step 2: Convert to fraction form
    38,376.81/57,581.91 = 13,434.75/x
  3. Step 3: Cross multiply
    38,376.81x = 57,581.91 × 13,434.75
  4. Step 4: Simplify right side
    38,376.81x = 773,598,565.37
  5. Step 5: Solve for x
    x = 773,598,565.37/38,376.81
  6. Step 6: Final answer
    x = 20,157.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.